-- as a woman dubbed the -- woman in America and tonight we look at her secrets for more energy every day and good health. Here's ABC's -- off funds. Got it very clear -- as at all high powered jobs we son headed to college. And her husband doctor cooks every night. -- pretty darn lucky I think I'm pretty darn happy. I don't. Really have anything to complain about right mind but -- good life isn't just good luck she's Smart decisions. If this is Mary -- about fifteen years ago. She gave birth and she was 33. -- south that's the ideal age for most women. Researchers working with US seeded -- found women who gave birth to their children between two point seven and 36 I -- lobbyist. One of the things that happens is so many. -- achieving young women in burnout by working like crazy through their thirties and then try to -- in the child -- -- -- there -- an early forties. And then where are you in midlife. You're exhausted and fed up but Mary Claire was about fifteen years ago she realized she gaining weight didn't have the energy to cook most nights. Philip husband stepped in today he needs to be in the healthy dinner every single night. -- every night and so today fifty years old very clear is thinner than she was a decade ago. She swears her secret this day is more than just think we husbands think I can't wait it -- Cheaply is volleyball with her son comes on the elliptical in the garage. -- -- -- -- -- with a -- every -- Since -- and -- ten minutes of fast walking. Boost your energy for two hours. Thirty minutes of exercise a week reduces depression which is key to this age group. -- shocking want in for middle aged women are on anti depressant. -- I'd say they have enough energy to get through the day. Mary Claire says she's been there but by making small changes he's making sure her best days on the horizon. -- enough -- -- ABC news new.

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